EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90528 Aroclor 1254 Price on request 9744.21-100-ET delta-9-THC-d3, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 19073 CLP - Acids Matrix Spiking Solution Price on request